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Expression data from Arabidopsis thaliana seedlings


ABSTRACT: Light pulses at the end of the day or night be able to control the phase of the circadian clock. Pulses in the middle of the night has not effect on the circadian oscilations. To understand how the circadian clock gate the light signal in the middle of the night we used microarrays to characterize the light effect in the whole expression profile. Plants of Arabidopsis thalina (Columbia ecotype) were grown in 12/12 light/dark cicles for 15 days and then were tranfer to continuous dark . Plants were slplit in two groups. First group recieved 1hr light pulse in the middle of the night (Night treatment), second group recieve 1hr light pulse in the middle of the subjective day (Day Treatment). Samples of both groups were collected without light pulse named as a control.

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Marcelo Yanovsky 

PROVIDER: E-GEOD-46621 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

LNK genes integrate light and clock signaling networks at the core of the Arabidopsis oscillator.

Rugnone Matias L ML   Faigón Soverna Ana A   Sanchez Sabrina E SE   Schlaen Ruben Gustavo RG   Hernando Carlos Esteban CE   Seymour Danelle K DK   Mancini Estefanía E   Chernomoretz Ariel A   Weigel Detlef D   Más Paloma P   Yanovsky Marcelo J MJ  

Proceedings of the National Academy of Sciences of the United States of America 20130701 29


Light signaling pathways and the circadian clock interact to help organisms synchronize physiological and developmental processes with periodic environmental cycles. The plant photoreceptors responsible for clock resetting have been characterized, but signaling components that link the photoreceptors to the clock remain to be identified. Here we describe a family of night light-inducible and clock-regulated genes (LNK) that play a key role linking light regulation of gene expression to the contr  ...[more]

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